Update JUnit version

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/fileupload/trunk@1649926 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 38fcad4..0289480 100644
--- a/pom.xml
+++ b/pom.xml
@@ -194,7 +194,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.12</version>
       <scope>test</scope>
     </dependency>
     <dependency>